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Question SMC3Utils and USB (CH340), connection problem

Discussion in 'DIY Motion Simulator Projects' started by motiondynamics, Nov 25, 2024 at 11:04.

  1. motiondynamics

    motiondynamics Member

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    My Motion Simulator:
    2DOF, 3DOF, DC motor, AC motor, SimAxe, Arduino, Motion platform, 6DOF
    Hello everyone, I have a serious problem with my simulator. Today I installed a new USB card with CH340, I installed the driver correctly, Windows detects the COM4 port perfectly, I open the file "SMC3Utils v1.01" I write COM4.
    I start SMC3Utils, Windows opens a Firewall window to allow use and I accept, the screen appears but it tells me that it is impossible to establish a connection and it crashes.

    TESTS PERFORMED
    Windows 10, CH340 USB card (OK)
    Windows 10, FT232 USB card (OK)
    Windows 11, FT232 USB card (OK)
    Windows 11, CH340 USB card (PROBLEM)

    What is the cause of the problem?
    How can I solve the problem?
    I absolutely have to solve the problem, I need to be able to use both Windows 10 and Windows 11 with the CH340 USB card.
    I await your answers, thanks
    motiondynamics, Nov 25, 2024 at 11:04
    #1
  2. noorbeast

    noorbeast VR Tassie Devil Staff Member Moderator Race Director

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    My Motion Simulator:
    3DOF, DC motor, JRK
    A quick search seems to indicate that the driver may not yet be tested on Win11, hence that would be my guess: https://learn.sparkfun.com/tutorials/how-to-install-ch340-drivers/all
    noorbeast, Nov 25, 2024 at 11:55
    #2
  3. motiondynamics

    motiondynamics Member

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    My Motion Simulator:
    2DOF, 3DOF, DC motor, AC motor, SimAxe, Arduino, Motion platform, 6DOF
    motiondynamics, Nov 25, 2024 at 14:02
    #3
  4. motiondynamics

    motiondynamics Member

    Joined:
    Apr 12, 2019
    Messages:
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    Ratings:
    +7 / 0 / -0
    My Motion Simulator:
    2DOF, 3DOF, DC motor, AC motor, SimAxe, Arduino, Motion platform, 6DOF
    In "device manager" the CH340 com is detected, then Win11 works, sees it installed, the driver works. I'm sure the problem is in SMC3Utils 1.01, which fails to communicate with Win11. Furthermore, SMC3utils was created about 9 years ago when WIN11 did not exist, so it is easy to think that it is obsolete and that the new version needs to be redone. Does anyone know if there is already a new version?
    Last edited by a moderator: Nov 26, 2024 at 02:38
    motiondynamics, Nov 26, 2024 at 00:58
    #4